diff --git a/reference/math/functions/mt-rand.xml b/reference/math/functions/mt-rand.xml
index 388ccbb62e..82fa27ed3a 100644
--- a/reference/math/functions/mt-rand.xml
+++ b/reference/math/functions/mt-rand.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.15 $ -->
+<!-- $Revision: 1.16 $ -->
 <refentry xml:id="function.mt-rand" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>mt_rand</refname>
@@ -7,11 +7,15 @@
  </refnamediv>
  <refsect1 role="description">
   &reftitle.description;
-   <methodsynopsis>
-    <type>int</type><methodname>mt_rand</methodname>
-    <methodparam choice="opt"><type>int</type><parameter>min</parameter></methodparam>
-    <methodparam><type>int</type><parameter>max</parameter></methodparam>
-   </methodsynopsis>
+  <methodsynopsis>
+   <type>int</type><methodname>mt_rand</methodname>
+   <void/>
+  </methodsynopsis>
+  <methodsynopsis>
+   <type>int</type><methodname>mt_rand</methodname>
+   <methodparam><type>int</type><parameter>min</parameter></methodparam>
+   <methodparam><type>int</type><parameter>max</parameter></methodparam>
+  </methodsynopsis>
   <simpara>
    Many random number generators of older libcs have dubious or
    unknown characteristics and are slow. By default, PHP uses the